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Micro- and meso-level residual stresses in glass-fiber/vinyl-ester composites
Aeronautical Research Institute of Sweden.
Aeronautical Research Institute of Sweden.
Luleå tekniska universitet.
2000 (English)In: Composites Science And Technology, ISSN 0266-3538, E-ISSN 1879-1050, Vol. 60, no 10, p. 2011-2028Article in journal (Refereed) Published
Abstract [en]

Residual stresses in glass-fiber composites were studied on the micro and meso scales by computational and experimental methods. Transmitted polarized light images of thin sections were compared with 3D finite-element solutions of a sample containing 1410 fibers. Calculated point-wise stresses were derived from a linear thermoelastic model with negligibly small numerical errors. Regions with calculated maximum compressive stresses showed good agreement with experimentally observed optical bands. A material with poor interfacial adhesion showed weaker optical effects indicating fiber/matrix debonding. On the basis of these results it seems likely that irreversible matrix deformation and debonding can take place in the curing phase.

Place, publisher, year, edition, pages
2000. Vol. 60, no 10, p. 2011-2028
National Category
Composite Science and Engineering
Research subject
Polymeric Composite Materials
Identifiers
URN: urn:nbn:se:ltu:diva-10463DOI: 10.1016/S0266-3538(00)00099-3ISI: 000088890800012Scopus ID: 2-s2.0-0034253860Local ID: 9467dc00-1043-11dc-b9dd-000ea68e967bOAI: oai:DiVA.org:ltu-10463DiVA, id: diva2:983408
Note
Validerad; 2000; 20070601 (cira)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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